<template>
    <nav-bar class="detail-nav">
        <img slot="left" class="back" @click="backClick" src="~assets/img/common/back.svg">
        <div class="title" slot="center">
            <span class="title-item" v-for="(item, index) in titleInfos" :key="index"
                :class="{'active' : index===currentIndex}" @click="itemClick(index)">
                {{item}}
            </span>
        </div>
    </nav-bar>
</template>

<script>
import NavBar from 'common/navbar/NavBar'

export default {
    name: "DetailNavBar",
    components: {
        NavBar
    },
    props: {
        titleInfos: {
            type: Array,
            default: () => {
                return ['商品', '参数', '评论', '推荐']
            }
        },
        currentIndex: {
            type: Number,
            default: 0
        }
    },
    methods: {
        itemClick: function (index) {
            this.$emit('itemClick', index)
        },
        backClick () {
            this.$router.back()
        }
    }
}
</script>

<style scoped>
.detail-nav {
    background-color: #fff;
    font-weight: normal;
}

.title {
    display: flex;
    padding: 0 20px;
    font-size: 14px;
}

.title-item {
    flex: 1;
}

.title-item.active {
    color: var(--color-high-text);
}

.back {
    margin-top: 12px;
}
</style>
